I would like to know if I can remove the Pentium 4 possessor and upgrade to (open to suggestion)(maybe a dual or quad core?) and than also a better graphics card. I have added a sata 80 gig hard drive after removing the 3.5 disk drive. and would like a (open to recommendation) better graphics card but not sure what will work best with either an AGP or a PCI(Not PCI express) slot. will these modification cause any problems. I am willing to hot change the possessor if it can not be done. but please advise so I can do this right . Thank you in advance.

As far as processors go, you'll need a Socket 478. Dual Core and Quad Core processors are Socket 775, so those are out. You also are running the Intel 845G chipset, which doesn't support Hyperthreading or any Prescott P4 CPU's. Your system has a 533MHz Front Side Bus, so there is little sense installing a processor running an 800MHz FSB. There is a 533MHz Northwood that runs at 3.06GHz with HT, but your chipset doesn't support it. The fastest 533MHz bus P4 Northwood is 2.8GHz. That would be the CPU to look for to take the most advantage of your GX260. It was released in August 2002 and should be easy to find these days, but probably not new.

As far as the video goes, almost anything will be an improvement over the on-board setup. Keep in mind you require a LOW PROFILE card that supports AGP 4X, not just 8X, it has to be 4X/8X or just 4X. nVidia 5200 and 6200 series comes to mind, as well as Radeon 9250. Most cards better than this are not low profile. Just be careful in your shopping. $40-$60 should get you a decent 128 or 256MB card. I doubt many 512MB cards will work.

BE CAREFUL about power requirements. Those SFF cases only have like a 155W PS. A Northwood processor sucks down 80W all by itself. Even the desktop and towers have only 200W or so. You might want to find a way to upgrade the power supply somehow before you speed this thing up, if at all possible.

Thanks for the question, I actually have three of these on their way from the east coast coming to me. I'll be looking for upgrades as well at some point, but as it is, they will be kid's computers around here. I'm waiting for the right GX270 to come along to build a screaming meanie.

As far as the video goes, almost anything will be an improvement over the on-board setup. Keep in mind you require a LOW PROFILE card that supports AGP 4X, not just 8X, it has to be 4X/8X or just 4X. nVidia 5200 and 6200 series comes to mind, as well as Radeon 9250. Most cards better than this are not low profile. Just be careful in your shopping. $40-$60 should get you a decent 128 or 256MB card. I doubt many 512MB cards will work. BE CAREFUL about power requirements. Those SFF cases only have like a 155W PS. A Northwood processor sucks down 80W all by itself. Even the desktop and towers have only 200W or so. You might want to find a way to upgrade the power supply somehow before you speed this thing up, if at all possible.
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